## Trigonometry (10th Edition)

$1.484$ radians
Step 1: To convert from degrees to radians, we need to multiply the angle in degrees by $\frac{\pi}{180}$ radians, $85.04^{\circ}=85.04(\frac{\pi}{180})$ Step 2: Using a calculator, $85.04(\frac{\pi}{180})\approx1.484$ radians